Behind the learning curve: bringing AI-assisted fluid management into real-world oncologic surgery

Our study explored how AI-assisted fluid management was implemented in abdominal oncologic surgery and how its use evolved over time, showing that adoption depends not only on technology, but also on clinician experience, trust and workflow integration.
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BioMed Central
BioMed Central BioMed Central

Implementation and learning curve in AI-assisted fluid management during abdominal oncologic surgery: a retrospective observational study - Journal of Anesthesia, Analgesia and Critical Care

Background Intraoperative fluid management during major abdominal oncologic surgery is complex and highly operator-dependent. Assisted Fluid Management (AFM) is an artificial intelligence–based decision support system designed to guide fluid challenges based on real-time Stroke Volume (SV) analysis. However, limited data are available on how AFM is adopted in routine clinical practice and how clinician interaction with the system evolves over time. Methods We conducted a retrospective observational study based on a prospectively maintained institutional database at a high-volume tertiary referral center. Adult patients undergoing major abdominal oncologic surgery with intraoperative AFM monitoring were included. Two consecutive time periods following AFM implementation were compared. Analyses were performed at the fluid-challenge level and focused on patterns of fluid challenge initiation (clinician-initiated vs AFM-suggested), hemodynamic effectiveness (SV response), and bolus characteristics, as markers of system adoption and learning curve. Postoperative clinical outcomes were not assessed. Results Fifty-nine patients were included, accounting for 404 fluid challenges. Over time, clinician-initiated boluses significantly decreased and AFM-suggested fluid challenges increased (p < 0.001). This shift was associated with higher overall effectiveness of fluid challenges and greater SV responses, particularly for AFM-suggested boluses, which showed a significant improvement in effectiveness and ΔSV over time (p < 0.05). Conclusions Progressive integration of AFM into routine anesthetic practice was associated with measurable changes in clinician behavior and improved physiological effectiveness of intraoperative fluid challenges over time, consistent with a learning curve effect. These findings support the role of AI-based decision support systems in promoting more consistent and physiologically targeted fluid management and provide a foundation for future prospective studies evaluating their impact on clinical outcomes.

In perioperative medicine, artificial intelligence is often discussed in terms of innovation, predictive performance and future potential. But in daily clinical practice, an equally important question is what happens when these tools actually enter the operating room. How are they used? How quickly do clinicians become familiar with them? And does their value change over time as confidence grows?

These were the questions behind our study on Assisted Fluid Management (AFM), an artificial intelligence–based decision support system designed to guide intraoperative fluid challenges using real-time stroke volume monitoring. We were interested not only in the technology itself, but in its implementation in routine care.

This question felt especially relevant in major abdominal oncologic surgery, where fluid therapy is a continuous balancing act. Too little fluid may compromise tissue perfusion, while too much may contribute to postoperative complications. In this setting, clinicians are constantly making time-sensitive decisions based on physiology, surgical conditions and patient-specific factors. A decision-support system may help structure these choices, but only if it is integrated into real clinical workflow in a meaningful way.

Our study was a retrospective observational analysis conducted in a high-volume tertiary referral center for abdominal oncologic surgery. We included adult patients monitored with AFM between February 2024 and March 2025 and compared two consecutive implementation periods. Rather than focusing on postoperative outcomes, we chose to examine the implementation process itself. We analyzed each fluid challenge at the bolus level, looking at whether it was initiated by the clinician or suggested by AFM, and whether it generated an effective stroke volume response.

What we found was, for us, the most interesting part of the story. Over time, clinician-initiated boluses decreased, while AFM-suggested fluid challenges increased. At the same time, the physiological effectiveness of AFM-suggested boluses improved, as did the overall effectiveness of fluid challenges. In total, the study included 59 patients and 404 fluid challenges, and the second implementation period showed a pattern consistent with increasing familiarity, confidence and more targeted use of the system.

This is why we believe the “learning curve” is central to the discussion around AI in anesthesiology. A tool like AFM is not simply switched on and instantly absorbed into practice. Its role evolves. Clinicians learn when to trust its suggestions, how to interpret them in context, and how to integrate them into their own judgment. In this sense, implementation is not a side issue; it is part of the technology’s real-world performance.

For us, this study also speaks to a broader issue in healthcare innovation. AI systems should not be evaluated only under ideal or early conditions. They should also be studied as they are adopted in practice, because maturity of use may shape results. Early implementation may reflect caution, novelty or incomplete integration, whereas later phases may better capture how a system truly functions in routine care.

At the same time, our findings should be interpreted within the limits of the study design. This was a retrospective, single-center observational analysis, and it was not designed to determine whether these implementation-related changes improve postoperative outcomes. That remains the next key question.

Still, what this work offers is a practical perspective on how AI enters clinical care: not as an abrupt transformation, but as a gradual process of adaptation between clinicians, workflow and technology. In perioperative medicine, that process may matter just as much as the algorithm itself.

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Life Sciences > Health Sciences > Clinical Medicine > Anesthesiology
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All submissions in this collection undergo the journal’s standard peer review process. Similarly, all manuscripts authored by a Guest Editor(s) will be handled by the Editor-in-Chief. As an open access publication, this journal levies an article processing fee (details here). We recognize that many key stakeholders may not have access to such resources and are committed to supporting participation in this issue wherever resources are a barrier. For more information about what support may be available, please visit OA funding and support, or email OAfundingpolicy@springernature.com or the Editor-in-Chief.

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Deadline: Apr 15, 2026